I can't honestly remember the last time I've gone into Blockbuster looking to rent games. I do seem to recall renting a Nintendo 64 there a while back. I have purchased a used game or two from them when searching for something to watch, but again, that's been some time ago, as I don't usually think of Blockbuster when I go searching for used games. What's strange is that they are actually trying to become a good place to get new video games.
You should be able to wander into your neighborhood Blockbuster store and find copies of Grand Theft Auto IV and Mario Kart Wii sitting on the shelves with other new release DVDs. Soon you'll be able to find consoles for sale as well.
I don't think this is a surprising move, as with services like Netflix becoming more popular, Blockbuster is going to need to change the way they're doing things in order to keep up with the times.